[INFO] updating cached repository TieSoul/GBEm
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/TieSoul/GBEm
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/TieSoul/GBEm" "work/ex/beta-1.38-1/sources/1.37.0/gh/TieSoul/GBEm"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/TieSoul/GBEm'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/TieSoul/GBEm" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/TieSoul/GBEm"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/TieSoul/GBEm'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 902b75d4157e1158f0d60d49098f9239b01816a5
[INFO] sha for GitHub repo TieSoul/GBEm: 902b75d4157e1158f0d60d49098f9239b01816a5
[INFO] validating manifest of TieSoul/GBEm on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of TieSoul/GBEm on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing TieSoul/GBEm
[INFO] finished frobbing TieSoul/GBEm
[INFO] frobbed toml for TieSoul/GBEm written to work/ex/beta-1.38-1/sources/1.37.0/gh/TieSoul/GBEm/Cargo.toml
[INFO] started frobbing TieSoul/GBEm
[INFO] finished frobbing TieSoul/GBEm
[INFO] frobbed toml for TieSoul/GBEm written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/TieSoul/GBEm/Cargo.toml
[INFO] crate TieSoul/GBEm already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing TieSoul/GBEm against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-6/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/TieSoul/GBEm:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 016bf6854e3da2e56e2b9a0a56aabb82498298580e1962a165755fb60f8bc38d
[INFO] running `"docker" "start" "-a" "016bf6854e3da2e56e2b9a0a56aabb82498298580e1962a165755fb60f8bc38d"`
[INFO] [stderr]    Compiling sdl2-sys v0.25.0
[INFO] [stderr]    Compiling rand v0.3.14
[INFO] [stderr]    Compiling sdl2 v0.25.0
[INFO] [stderr]    Compiling gb_em v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0583]: file not found for module `cpu`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | mod cpu;
[INFO] [stderr]   |     ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: name the file either cpu.rs or cpu/mod.rs inside the directory "src"
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0583`.
[INFO] [stderr] error: Could not compile `gb_em`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "016bf6854e3da2e56e2b9a0a56aabb82498298580e1962a165755fb60f8bc38d"`
[INFO] running `"docker" "rm" "-f" "016bf6854e3da2e56e2b9a0a56aabb82498298580e1962a165755fb60f8bc38d"`
[INFO] [stdout] 016bf6854e3da2e56e2b9a0a56aabb82498298580e1962a165755fb60f8bc38d